Some would recommend a 1.5 way for tarmac: for better grip on trailing throttle...
Some would prioritise a torsen or maybe even a plated front LSD: as the stocker is open...
...and the stock rear torsen LSD works reasonably well and is quieter than a plated rear.
Around 200+ for a s/h 2 way, 400 for s/h 1.5 way or 750ish for eg the K2 1.5 way new... Plus import fees...
Avoid a suretrak as that iirc is a type of torsen diff...
So IMHO if you need a new clutch soon consider a flsd upgrade, if not go the plated rear... Or do both.
Member DJA has a 2way rear, loves it.
I you get one and it's really noisy then friction modifiers can be added to the oil to tone it down
